Ingress is an augmented reality online multiplayer online role playing game created by Niantic Labs, a startup within Google, originally for Android devices, and since July 14, 2014 for Apple's iOS. The game has a complex science fiction back story with a continuous open narrative.

There are two factions to choose from. The Enlightened fight believing their actions will uplift humanity, and bring about the next chapter in human evolution, while the Resistance believes in preserving what freedom humanity has left. The Resistance are represented by blue and the Enlightened are represented by green. In some areas, the Resistance are jokingly referred to as "Smurfs", and the Enlightened "Frogs". Portals are either grey (unclaimed), blue, or green.